steveloughran commented on PR #959: URL: https://github.com/apache/parquet-mr/pull/959#issuecomment-1199891512
ypu might want to look at WeakReferences...we've been using them recently to implement threadlocal-like storage where GCs will trigger cleanup of instances which aren't being used any more https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/impl/WeakReferenceThreadMap.java https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/WeakReferenceMap.java the evolution of that code would be to implement the callback the JVM can issue on reference expiry and so do extra cleanup there -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@parquet.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
